> However, when someone is making a point which is a fairly standard one in the Brexit debates we don't need "references".

If it's fairly standard I should be able to find at least one survey mentioning it online, right? I tried before sending that comment and couldn't find a single one pointing out corruption and bureaucracy as main reasons. (Or even at all) Ironically I find only articles about corruption in Vote Leave campaign. If it's that standard opinion, please post any source which ranks it against other reasons.